TABLE 2.
Comparison of cough between male and female subjects
| Characteristic | Male | Female | p-value |
| Patients n | 32 | 39 | |
| Dementia type n | |||
| Control | 14 | 8 | |
| AD | 9 | 21 | |
| DLB | 9 | 10 | |
| C2 log g·L−1 | 0.97±0.47 | 0.90±0.52 | 0.27 |
| C5 log g·L−1 | 1.16±0.51 | 1.10±0.49 | 0.5 |
| Cu log g·L−1 | 0.40±0.43 | 0.42±0.49 | 0.9 |
| UTC slope | 1.00±0.66 | 1.03±0.72 | 0.99 |
Data are presented as mean±sd unless otherwise stated and were analysed using the Mann–Whitney test. p-Values less than 0.05 were deemed to represent significant difference. AD: Alzheimer's disease; DLB: dementia with Lewy bodies; Cx: lowest concentration of inhaled citric acid that could induce ≥x coughs; Cu: concentration of citric acid at a threshold of UTC; UTC: urge-to-cough.